摘要
采用微波消解的办法,对土壤样品进行一次性消解处理,以期找到较优消解条件,将土壤消解完全。结果发现土壤称样量0.1000 g时,用硝酸–盐酸–氢氟酸体系和硝酸–过氧化氢–氢氟酸体系消解效果相同,土壤称样量0.1500 g时,前者消解效果较后者好,所以在进行土壤微波消解时建议优先选择硝酸-盐酸-氢氟酸体系。为了检测的准确性酸的纯度越高越好。
The soil samples were digested by one-time microwave digestion method, and the better digestion condition was found. The results showed that the digestion effect of nitric acid - hydrochloric acid - hydrofluoric acid system and nitric acid - hydrogen peroxide - hydrofluoric acid system were the same when the soil sample was 0.1000 g. The former method was better than the latter one when the soil sample was 0.1500 g. Therefore, it was recommended to choose the nitric acid - hydrochloric acid - hydrofluoric acid system in soil microwave digestion. The higher the purity of the acid, the better the accuracy of the test.
出处
《环境保护前沿》
2017年第2期170-179,共10页
Advances in Environmental Protection
